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Proceedings Paper

Recent developments in materials for TFT/PDLC devices
Author(s): David Coates; S. Greenfield; Mark Goulding; E. Brown; Patrick Nolan
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Paper Abstract

Liquid crystal mixtures for use over an active matrix substrate must have a high resistivity and, to maintain high value during the lifetime of the display, the materials must be very stable. Many such liquid crystal mixtures are known and used in twisted nematic displays but they are of low birefringence; very few high birefringence liquid crystals of this type are known. Several classes of liquid crystal which fulfill these criteria have been developed and formulated into low melting point mixtures suitable for use with UV curing prepolymers. The properties of PDLC films containing these new mixtures show that the high birefringence values now possible can lead to substantially increased contrast ratios.

Paper Details

Date Published: 13 August 1993
PDF: 13 pages
Proc. SPIE 1911, Liquid Crystal Materials, Devices, and Applications II, (13 August 1993); doi: 10.1117/12.151202
Show Author Affiliations
David Coates, Merck Ltd. (United Kingdom)
S. Greenfield, Merck Ltd. (United Kingdom)
Mark Goulding, Merck Ltd. (United Kingdom)
E. Brown, Merck Ltd. (United Kingdom)
Patrick Nolan, Merck Ltd. (United Kingdom)


Published in SPIE Proceedings Vol. 1911:
Liquid Crystal Materials, Devices, and Applications II
Uzi Efron; Michael D. Wand, Editor(s)

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